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Communication: FOURTH PERIOD

A randomized 25 question test from a pool of 761 questions, good luck!
There are several layer within the a typical DCS., each with it's own responsibilities. Which of the levels below is responsible for the maintenance and configuration of the control system?
The industrial network topologies you are required to use is defined by the OSI network model. Which of the common topologies below is likely described as a network with a single central connection point?
Digital signals are, either specific or transitory, voltage levels represent states of logic. Which of the signal encoding methods below uses the conversion of dc voltage levels to ac to represent logic states?
There are several different network access methods available to wired Ethernet. Which of the methods below is the one used by wired Ethernet?
Modbus protocol can implement data encapsulation over IP based networks. Which of the statements below is an advantage of using encapsulation?
Which of the signalling methods best describes the one used by DeviceNet?
Which one is best described as connecting the input signal of a device, with the output of the converter itself?
Over the lifetime of a HMI, there will be changes to it's software form the supplier. Which of the terms below would best describe the red number in the picture below?
Which answer below best represent the approximation of the total amount of errors in an analog field communications transmission?
A typical HMI has several subsystems attached to it. Which of the subsystems below would be involved in the manipulation process control inputs?
RS-232 to USB is the best example of which of the following converters?
HMI networks are needed to expand or contract as required over their lifetime of use. Which of the networking types below will have the least amount of scalability?
Which of the answers below best reflects the power range that is transmitted to field devices when the Foundation fieldbus H1 is operating?
With any GUI, there are opportunities to use gathered data visually. Which of the methods below would be best described as one that would allow an operator to retrieve and plot data over an extended time frame?
Modbus has standard command codes to allow the master to access information from it's slaves. Which of the commands below would be used to write the contents of a series of 10 coils to the slave device?
In the unbalanced signal transmission system, which answer best represents the number 1?
The numerous tasks that are accomplished at the same time in a DCS, is a result of the configured software programs that it has . Which of the software programs below will governed by IEC-61131-3?
A typical HMI has several subsystems attached to it. Which of the subsystems below would be involved in the guardianship of the process control inputs?
In the protocol specifications of Modbus, there are only four types of registers that can be accessed by the master. Which of the terms below is best described as a discreet input memory location?
A DCS collects a lot of data during the course of operating. Which of the terms below would best describe the database that contains all the data required to create a trend in the process?
Which of the lengths below relates best to a spur cable with 3 field devices connected?
A typical HMI has several subsystems attached to it. Which of the subsystems below would be involved in visual indications of data?
Providing power to remote sites in a SCADA system has several difficulties associated with it. Which of the answers below would be best defined as one that is used for continuous power generation where there are no other options?
Ethernet/IP, is the ______ level protocol that industrial Ethernet uses exclusively. Select the term below that best fills in the blank.
Using the table provided, which answer best represents the letter"H" in hexadecimal?